/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/TriangleMesh.h
The GetFaceNormals functions assume Counter Clockwise triangle windings in a Left Handed coordinate system If this is not the case the returned face normals may be inverted
template<typename T> [TArray](API\Runtime\Core\Containers\TArray)< [TVec3](API\Runtime\ChaosCore\Chaos\TVec3)< T > > GetFaceNormals ( const TConstArrayView< [TVec3](API\Runtime\ChaosCore\Chaos\TVec3)< T >> & Points, const bool ReturnEmptyOnError ) const